Lenovo today unveiled a new, thinner and lighter ThinkPad T Series model, the ThinkPad T431s. I had the pleasure of seeing this new model at CES and it's a lovely and slim machine that's clearly influenced by Ultrabook designs. The T431s weighs just 3.6 pounds and it's fairly slim at 0.82". The T431s has a new buttonless 5 button trackpad (buttons at the bottom for the trackpad and buttons along the upper edge for the TrackPoint). It will be available in April starting at $949.

- Streamlined Interior: Lenovo updated the award-winning ThinkPad precision keyboard by improving key placement while maintaining shortcuts for a sleeker-looking keyboard, designing the display with a super thin bezel, and debuting a new Graphite Black color.

- Enhanced trackpad experience: The new ThinkPad trackpad is an evolution of the TrackPoint and TouchPad featuring a new larger, smooth, responsive, multi-touch glass surface that optimizes Windows 8 gestures, click functionality, and integrates TrackPoint behavior to deliver a customized, improved experience for all users.

- Thinness, Durability, Reliability: The ThinkPad T431s, the thinnest and lightest T series ever made and the first device incorporating the new design elements, weighs just 3.6 pounds (1.63kg) and measures only 0.82 inches (20.6mm) thin. The carbon fiber top cover and magnesium exterior continue ThinkPad's heritage of business-class rugged design and durability.

The T431s is powered by Intel third generation Core processors with Turbo Boost, features improved Intel HD Graphics, up to 12 GB of memory and additional HDD and SSD storage options. The T431s has a 14-inch HD+ (1600 x 900) anti-glare display, two USB 3.0 ports for fast data transfer. The T431s is also available with Intel vPro for easy device management, supports ThinkPad docking, and provides enhanced security that commercial customers require.